The blade tip speed of a backward bladed centrifugal fan running at 300 rpm delivers 120 m3/s of air. If the tip speed of the blade is 47.12 m/s and width of the fan is 1.3 m then the radial velocity of air at the periphery of the impeller in m/s is
A. 9.79
B. 12.73
C. 30.79
D. 40.22
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Ventilation
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